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WO2008002500A1 - Procédés de production de tétrafluoropropène - Google Patents

Procédés de production de tétrafluoropropène Download PDF

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Publication number
WO2008002500A1
WO2008002500A1 PCT/US2007/014645 US2007014645W WO2008002500A1 WO 2008002500 A1 WO2008002500 A1 WO 2008002500A1 US 2007014645 W US2007014645 W US 2007014645W WO 2008002500 A1 WO2008002500 A1 WO 2008002500A1
Authority
WO
WIPO (PCT)
Prior art keywords
hfc
tetrafluoropropene
azeotrope
dehydrofluorination
mole percent
Prior art date
Application number
PCT/US2007/014645
Other languages
English (en)
Inventor
Mario Joseph Nappa
Velliyur Nott Mallikarjuna Rao
Allen Capron Sievert
Original Assignee
E. I. Du Pont De Nemours And Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38656573&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2008002500(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by E. I. Du Pont De Nemours And Company filed Critical E. I. Du Pont De Nemours And Company
Priority to JP2009518189A priority Critical patent/JP5393453B2/ja
Priority to US12/301,070 priority patent/US7722781B2/en
Priority to ES07796388.2T priority patent/ES2539938T3/es
Priority to CN200780023672.2A priority patent/CN101479217B/zh
Priority to EP07796388.2A priority patent/EP2043979B2/fr
Publication of WO2008002500A1 publication Critical patent/WO2008002500A1/fr
Priority to US12/758,839 priority patent/US8377327B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/22—Halogenating
    • B01J37/26—Fluorinating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/125—Halogens; Compounds thereof with scandium, yttrium, aluminium, gallium, indium or thallium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/25—Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C07C17/386—Separation; Purification; Stabilisation; Use of additives by distillation with auxiliary compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C21/00—Acyclic unsaturated compounds containing halogen atoms
    • C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
    • C07C21/18—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds containing fluorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina

Definitions

  • the present invention relates to the production of tetrafluoropropenes and more specifically to the production of 2,3,3,3- tetrafluoropropene (HFC-1234yf) and 1,3,3,3-tetrafluoropropene (HFC- 1234ze) from 1 ,1 ,1 ,2,3-pentafluoropropane (HFC-245eb).
  • HFC-1234yf 2,3,3,3- tetrafluoropropene
  • HFC- 1234ze 1,3,3,3-tetrafluoropropene
  • HFC-1234yf and HFC-1234ze both having zero ozone depletion and low global warming potential, have been identified as potential refrigerants.
  • U. S. Patent Publication No. 2006/0106263 A1 discloses the separate production of HFC-1234ze (mixture of E- and Z- isomers) by a catalytic vapor phase dehydrofluorination of CF3CH2CHF2 and of HFC- 1234yf by a catalytic vapor phase dehydrofluorination of CF 3 CF 2 CH 3 .
  • the present invention provides a process for the manufacture of HFC-1234yf and HFC-1234ze.
  • the process comprises (a) dehydrofluorinating HFC-245eb in the presence of a dehydrofluorination catalyst to produce a product mixture comprising HFC-1234yf and HFC- 1234ze; and (b) recovering said HFC-1234yf and HFC-1234ze from the product mixture produced in (a).
  • the present invention also provides a composition
  • a composition comprising (a) the Z-isomer of HFC-1234ze and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z-HFC- 1234ze.
  • HFC-1234ze can exist as one of two configurational isomers, E or Z.
  • HFC-1234ze as used herein refers to a single configurational isomer or a mixture of the isomers.
  • HFC-245eb to produce both HFC-1234ze and HFC-1234yf is ordinarily carried out in the vapor phase using a dehydrofluorination catalyst.
  • Vapor phase dehydrofluorination catalysts are well known in the art.
  • These catalysts include, but are not limited to, alumina, aluminum fluoride, fluorided alumina, metal compounds on aluminum fluoride, metal compounds on fluorided alumina; oxides, fluorides, and oxyfluorides of magnesium, zinc and mixtures of magnesium and zinc and/or aluminum; lanthanum oxide and fluorided lanthanum oxide; chromium oxides, fluorided chromium oxides, and cubic chromium trifluoride; carbon, acid-washed carbon, activated carbon, three dimensional matrix carbonaceous materials; and metal compounds supported on carbon.
  • the metal compounds are oxides, fluorides, and oxyfluorides of at least one metal selected from the group consisting of sodium, potassium, rubidium, cesium, yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, chromium, iron, cobalt, rhodium, nickel, copper, zinc, and mixtures thereof.
  • Fluorided alumina and aluminum fluoride can be prepared as described in U. S. Patent No. 4,902,838, incorporated herein by reference or by treatment of alumina with a vaporizable fluorine containing compound such as CF 2 CI 2 as shown in the Examples below or treatment with compounds such as CF 2 HCI and CHF 3 .
  • the dehydrofluorination of HFC-245eb is carried out using carbon, activated carbon, or three dimensional matrix carbonaceous materials as catalysts in a manner analogous to the processes disclosed in U. S. Patent No. 6,369,284, incorporated herein by reference; or using metals such as sodium, potassium, rubidium, cesium, yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, chromium, iron, cobalt, rhodium, nickel, copper, zinc, and mixtures thereof, supported on carbon as catalysts in a manner analogous to the processes disclosed in U. S. Patent No. 5,268,122, incorporated herein by reference.
  • Carbon from any of the following sources are useful for the process of this invention; wood, peat, coal, coconut shells, bones, lignite, petroleum-based residues and sugar.
  • Commercially available carbons which may be used in this invention include those sold under the following trademarks: Barneby & SutcliffeTM, DarcoTM, NucharmTM, Columbia JXNTM, Columbia LCKTM, Calgon PCBTM, Calgon BPLTM, WestvacoTM, NoritTM, and Barnaby Cheny NBTM.
  • Carbon includes acid-washed carbon (e.g., carbon that has been treated with hydrochloric acid or hydrochloric acid followed by hydrofluoric acid). Acid treatment is typically sufficient to provide carbon that contains less than 1000 ppm of ash. Suitable acid treatment of carbon is described in U.S. Patent. No. 5,136,113, incorporated herein by reference.
  • the carbon of this invention also includes three dimensional matrix porous carbonaceous materials. Examples are those described in U.S. Patent. No. 4,978,649, incorporated herein by reference.
  • three dimensional matrix carbonaceous materials which are obtained by introducing gaseous or vaporous carbon-containing compounds (e.g., hydrocarbons) into a mass of granules of a carbonaceous material (e.g., carbon black); decomposing the carbon-containing compounds to deposit carbon on the surface of the granules; and treating the resulting material with an activator gas comprising steam to provide a porous carbonaceous material.
  • a carbon-carbon composite material is thus formed.
  • the catalytic dehydrofluorination of HFC-245eb is carried out using chromium oxides, fluorided chromium oxides, and cubic chromium trifluoride as catalysts.
  • Cubic chromium trifluoride may be prepared from CrFsXHaO, where X is 3 to 9, preferably 4, by heating in air or an inert atmosphere (e.g., nitrogen or argon) at a temperature of about 350 0 C to about 400 0 C for 3 to 12 hours, preferably 3 to 6 hours.
  • an inert atmosphere e.g., nitrogen or argon
  • the physical shape of the catalyst is not critical and may, for example, include pellets, powders or granules. Additionally, for catalysts supported on carbon, the carbon may be in the form of powder, granules, or pellets, or the like.
  • catalysts may be treated with HF before use. It is thought that this converts some of the surface oxides to oxyfluorides. This pretreatment can be accomplished by placing the catalyst in a suitable container (which can be the reactor to be used to perform the reaction of the instant invention) and thereafter, passing HF over the dried catalyst so as to partially saturate the catalyst with HF.
  • This is conveniently carried out by passing HF over the catalyst for a period of time (e.g., about 15 to 300 minutes) at a temperature of, for example, about 200 0 C to about 450 0 C.
  • the catalytic dehydrofluorination may be suitably conducted at a temperature in the range of from about 200 0 C to about 500 0 C, and is preferably conducted at a temperature in the range of from about 300 0 C to about 450 0 C.
  • the contact time is typically from about 1 to about 450 seconds, preferably from about 10 to about 120 seconds.
  • the reaction pressure can be subatmospheric, atmospheric or superatmostpheric. Generally, near atmospheric pressures are preferred. However, the dehydrofluorination can be beneficially run under reduced pressure (i.e., pressures less than one atmosphere).
  • the catalytic dehydrofluorination can optionally be carried out in the presence of an inert gas such as nitrogen, helium, or argon.
  • an inert gas such as nitrogen, helium, or argon.
  • the addition of an inert gas can be used to increase the extent of dehydrofluorination.
  • Nitrogen is the preferred inert gas.
  • Reaction products HFC-1234yf and HFC-1234ze and any unconverted HFC-245eb are recovered from the effluent leaving the reactor.
  • the unconverted HFC-245eb can be recycled back to the reactor to produce additional HFC-1234yf and HFC-1234ze.
  • the unconverted HFC-245eb is recycled back to the reactor as it's azeotrope with HF.
  • 60/732397 discloses an azeotrope of the E- isomer of HFC-1234ze and HF and a method to separate the HFC-1234ze from the azeotrope
  • U.S. Application No. 60/732321 discloses an azeotrope of HFC-1234yf and HF and a method to separate the HFC-1234yf from the azeotrope.
  • HFC ⁇ 1234ze may be recovered as a HF/HFC-1234ze azeotrope.
  • HFC-1234yf may be recovered as a HF/HFC-1234yf azeotrope.
  • Pure HFC-1234ze and pure HFC-1234yf can be further recovered from their HF azeotropes by using methods similar to those described in U.S. Application No. 60/732397 and U.S. Application No. 60/732321 , both filed on November 1 , 2005, and both of which are incorporated herein by reference (see U.S. Patent Publication Nos. 2007/0100173 and 2007/0100175).
  • the present invention also provides azeotrope or near azeotrope compositions comprising an effective amount of hydrogen fluoride combined with the Z- isomer of HFC-1234ze.
  • the Z- isomer of HFC-1234ze (as well as the E-isomer of HFC-1234ze, unconverted HFC-245eb and HFC-1234yf) each can be present as their respective azeotrope or near azeotrope with HF.
  • the HF come from the dehydrofluorination reaction of HFC-245eb.
  • an azeotrope or a near azeotrope composition is an admixture of two or more different components which, when in liquid form under a given pressure, will boil at a substantially constant temperature, which temperature may be higher or lower than the boiling temperatures of the individual components, and which will provide a vapor composition essentially identical to the liquid composition undergoing boiling.
  • near azeotrope composition means a composition that behaves like an azeotrope (i.e., has constant boiling characteristics or a tendency not to fractionate upon boiling or evaporation).
  • the composition of the vapor formed during boiling or evaporation is the same as or substantially the same as the original liquid composition.
  • the liquid composition if it changes at all, changes only to a minimal or negligible extent. This is to be contrasted with non-near azeotrope compositions in which during boiling or evaporation, the liquid composition changes to a substantial degree.
  • near azeotrope compositions exhibit dew point pressure and bubble point pressure with virtually no pressure differential. That is to say that the difference in the dew point pressure and bubble point pressure at a given temperature will be a small value.
  • compositions with a difference in dew point pressure and bubble point pressure of less than or equal to 3 percent (based upon the bubble point pressure) is considered to be a near azeotrope.
  • the essential features of an azeotrope or a near azeotrope composition are that at a given pressure, the boiling point of the liquid composition is fixed and that the composition of the vapor above the boiling composition is essentially that of the boiling liquid composition (i.e., no fractionation of the components of the liquid composition takes place). It is also recognized in the art that both the boiling point and the weight percentages of each component of the azeotrope composition may change when the azeotrope or near azeotrope liquid composition is subjected to boiling at different pressures.
  • an azeotrope or a near azeotrope composition may be defined in terms of the unique relationship that exists among the components or in terms of the compositional ranges of the components or in terms of exact weight percentages of each component of the composition characterized by a fixed boiling point at a specified pressure. It is also recognized in the art that various azeotrope compositions (including their boiling points at particular pressures) may be calculated (see, e.g., W. Schotte Ind. Eng. Chem. Process Des. Dev. (1980) 19, 432-439). Experimental identification of azeotrope compositions involving the same components may be used to confirm the accuracy of such calculations and/or to modify the calculations at the same or other temperatures and pressures.
  • compositions which comprise the Z-isomer of HFC-1234ze and HF, wherein the HF is present in an effective amount to form an azeotropic combination with the Z-HFC- 1234ze.
  • these compositions comprise from about 77.0 mole percent to about 48.5 mole percent HF and from about 23.0 mole percent to about 51.5 mole percent Z-HFC-1234ze (which form azeotropes boiling at a temperature of from between about -20 0 C and about 160 0 C and at a pressure of from between about 4.75 psi (32.7 kPa) and about 997 psi (6874 kPa)).
  • near azeotrope compositions containing HF and Z- HFC-1234ze may also be formed.
  • Such near azeotrope compositions exist around azeotrope compositions. For example, with respect to the azeotropic composition calculated to comprise 77.0 mole percent HF and
  • azeotropic composition calculated to comprise 61.3 mole percent HF and 38.7 mole percent Z-HFC-1234ze at 60 0 C and 93.2 psi (643 kPa)
  • other compositions comprising from about 67.8 mole percent to about 53.6 mole percent HF and from about 32.2 mole percent to about 46.4 mole percent Z-HFC-1234ze are considered to be near azeotrope compositions at the same temperature and pressure.
  • the azeotropic composition calculated to comprise 49.9 mole percent HF and
  • compositions may be formed that consist essentially of azeotrope combinations of hydrogen fluoride with Z-HFC-1234ze. These include compositions calculated to consist essentially of from about 77.0 mole percent to about 48.5 mole percent HF and from about 23.0 mole percent to about 51.5 mole percent Z-HFC-1234ze (which forms an azeotrope boiling at a temperature from between about -20 0 C and about 160 0 C and at a pressure from between about 4.75 psi (32.7 kPa) and about 997 psi (6874 kPa)).
  • azeotropes of Z-HFC-1234ze and HF are formed at a variety of temperatures and pressures.
  • azeotrope compositions consisting essentially of Z-HFC-1234ze and HF may be formed between 32.7 kPa (at a temperature of -20 0 C) and 6874 kPa (at a temperature of 160 0 C), said compositions ranging from about 77.0 mole percent HF (and 23.0 mole percent Z-HFC-1234ze) to about 48.5 mole percent HF (and 51.5 mole percent Z-HFC-1234ze).
  • An azeotrope of HF and Z-HFC-1234ze at 60.0 0 C and 93.2 psi (643 kPa) has been calculated to consist essentially of about 61.3 mole percent HF and about 38.7 mole percent Z-HFC-1234ze.
  • An azeotrope of HF and Z-HFC- 1234ze at 150.0 0 C and 782 psi (5392 kPa) has been calculated to consist essentially of about 49.9 mole percent HF and about 50.1 mole percent Z- HFC-1234ze.
  • the reactor, distillation columns, and their associated feed lines, effluent lines, and associated units used in applying the processes of this invention should be constructed of materials resistant to hydrogen fluoride.
  • the following specific embodiments are to be construed as merely illustrative, and do not constrain the remainder of the disclosure in any way whatsoever.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

L'invention concerne un procédé de production de CF3CF=CH2 et de CF3CH=CHF. Le procédé de l'invention consiste à déshydrofluorer du CF3CHFCH2F en présence d'un catalyseur de déshydrofluoration afin d'obtenir un mélange de produits contenant du CF3CF=CH2 et du CF3CH=CHF; et à récupérer lesdits CF3CF=CH2 et CF3CH=CHF à partir du mélange de produits. La présente invention concerne également une composition comprenant : (a) l'isomère Z de CF3CH=CHF et (b) du fluorure d'hydrogène (HF); le HF étant présent à une dose efficace pour former une combinaison azéotropique avec Z- CF3CH=CHF.
PCT/US2007/014645 2006-06-27 2007-06-22 Procédés de production de tétrafluoropropène WO2008002500A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2009518189A JP5393453B2 (ja) 2006-06-27 2007-06-22 テトラフルオロプロペンの製造方法
US12/301,070 US7722781B2 (en) 2006-06-27 2007-06-22 Tetrafluoropropene production processes
ES07796388.2T ES2539938T3 (es) 2006-06-27 2007-06-22 Procedimientos de producción de tetrafluoropropeno
CN200780023672.2A CN101479217B (zh) 2006-06-27 2007-06-22 四氟丙烯生产方法
EP07796388.2A EP2043979B2 (fr) 2006-06-27 2007-06-22 Procédés de production de tétrafluoropropène
US12/758,839 US8377327B2 (en) 2006-06-27 2010-04-13 Tetrafluoropropene production processes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81665006P 2006-06-27 2006-06-27
US60/816,650 2006-06-27

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/301,070 A-371-Of-International US7722781B2 (en) 2006-06-27 2007-06-22 Tetrafluoropropene production processes
US12/758,839 Continuation-In-Part US8377327B2 (en) 2006-06-27 2010-04-13 Tetrafluoropropene production processes

Publications (1)

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WO2008002500A1 true WO2008002500A1 (fr) 2008-01-03

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US (1) US7722781B2 (fr)
EP (1) EP2043979B2 (fr)
JP (1) JP5393453B2 (fr)
CN (1) CN101479217B (fr)
ES (1) ES2539938T3 (fr)
RU (1) RU2445302C2 (fr)
WO (1) WO2008002500A1 (fr)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7420094B2 (en) 2006-09-05 2008-09-02 E.I. Du Pont De Nemours And Company Catalytic isomerization processes of 1,3,3,3-tetrafluoropropene for making 2,3,3,3-tetrafluoropropene
JP2009196900A (ja) * 2008-02-19 2009-09-03 Central Glass Co Ltd フルオロオレフィンとフッ化水素の分離方法
JP2009221202A (ja) * 2008-03-14 2009-10-01 Honeywell Internatl Inc フッ素化オレフィンの製造方法
WO2009118632A1 (fr) 2008-03-28 2009-10-01 Arkema France Procede pour la preparation du 2,3,3,3-tetrafluoro-1-propene
WO2010101198A1 (fr) 2009-03-04 2010-09-10 Daikin Industries, Ltd. Processus de préparation de propènes contenant du fluor renfermant du 2,3,3,3-tétrafluoropropène et du 1,3,3,3-tétrafluoropropène
US7833434B2 (en) 2006-06-27 2010-11-16 E. I. Du Pont De Nemours And Company Tetrafluoropropene production processes
KR20110008314A (ko) * 2008-05-07 2011-01-26 이 아이 듀폰 디 네모아 앤드 캄파니 1,1,1,2,3-펜타플루오로프로판 또는 2,3,3,3-테트라플루오로프로펜을 포함하는 조성물
WO2011010025A1 (fr) 2009-07-23 2011-01-27 Arkema France Procede de preparation de composes fluores
JP2011515456A (ja) * 2008-03-28 2011-05-19 アルケマ フランス フッ素化された化合物の製造方法
WO2011077394A1 (fr) 2009-12-23 2011-06-30 Arkema France Fluoration catalytique en phase gazeuse du 1230xa donnant du 1234yf
WO2011077191A1 (fr) 2009-12-23 2011-06-30 Arkema France Fluoration catalytique en phase gazeuse du 1230xa en 1234yf
WO2011077192A1 (fr) 2009-12-23 2011-06-30 Arkema France Fluoration catalytique en phase gazeuse du 1233xf en 1234yf
WO2011077193A1 (fr) 2009-12-23 2011-06-30 Arkema France Fluoration catalytique en phase gazeuse de 243db en 1234yf
JP2011520017A (ja) * 2008-05-07 2011-07-14 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー ２，３−ジクロロ−１，１，１−トリフルオロプロパン、２−クロロ−１，１，１−トリフルオロプロペン、２−クロロ−１，１，１，２−テトラフルオロプロパンまたは２，３，３，３−テトラフルオロプロペンを含む組成物
JP2012502085A (ja) * 2008-09-11 2012-01-26 アルケマ フランス フッ素化物の製造方法
US8198491B2 (en) 2008-08-06 2012-06-12 Daikin Industries, Ltd. Process for preparing 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene
WO2012098422A1 (fr) 2011-01-21 2012-07-26 Akrema France Fluoration catalytique en phase gazeuse
WO2012098421A1 (fr) 2011-01-21 2012-07-26 Arkema France Fluoration catalytique en phase gazeuse
US8263816B2 (en) 2006-06-27 2012-09-11 E I Du Pont De Nemours And Company 1,2,3,3,3-Pentafluoropropene production processes
WO2013037286A1 (fr) 2011-09-14 2013-03-21 中化蓝天集团有限公司 Procédé de préparation d'un 2,3,3,3-tétrafluoropropène
US8410325B2 (en) 2006-12-19 2013-04-02 Mexichem Amanco Holding S.A. De C.V. Process for the preparation of C3-7 fluoroalkenes by base-mediated dehydrohalogenated C3-7 fluoroalkenes
US8420873B2 (en) 2008-08-22 2013-04-16 Daikin Industries, Ltd. Process for preparing 2,3,3,3-tetrafluoropropene
US8546623B2 (en) 2006-10-03 2013-10-01 Mexichem Amanco Holding S.A. De C.V. Dehydrogenationhalogenation process for the production of C3 -C6-(hydro)fluoroalkenes
WO2014010750A1 (fr) 2012-07-10 2014-01-16 Daikin Industries, Ltd. Procédé de production d'oléfine contenant du fluor
US8742181B2 (en) 2007-04-11 2014-06-03 Mexichem Amanco Holding S.A. De C.V. Process for isomerizing A (hydro)fluoroalkene
JP2014148544A (ja) * 2008-07-31 2014-08-21 Honeywell Internatl Inc ２，３，３，３−テトラフルオロプロペンの製造方法
WO2014147310A1 (fr) 2013-03-20 2014-09-25 Arkema France Composition comprenant hf et 2,3,3,3-tetrafluoropropene
WO2015092211A1 (fr) 2013-12-19 2015-06-25 Arkema France Compositions azeotropiques a base de fluorure d'hydrogene et de z-3,3,3-trifluoro-1-chloropropene
EP2438033B1 (fr) 2009-06-03 2017-07-26 The Chemours Company FC, LLC Procédé de fabrication de 2,3,3,3-tetrafluoropropène
US10077221B2 (en) 2013-03-20 2018-09-18 Arkema France Composition comprising HF and E-3,3,3-trifluoro-1-chloropropene
US10550054B2 (en) 2013-03-20 2020-02-04 Arkema France Composition comprising HF and 3,3,3-trifluoropropene
US10577294B2 (en) 2015-12-14 2020-03-03 Arkema France Gas-phase catalytic fluorination with chromium catalysts
US10590051B2 (en) 2015-05-29 2020-03-17 Daikin Industries, Ltd. Method for producing fluorine-containing olefin
US10669465B2 (en) 2016-09-19 2020-06-02 Arkema France Composition comprising 1-chloro-3,3,3-trifluoropropene
US10858561B2 (en) 2008-10-16 2020-12-08 Arkema France Heat transfer method
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RU2445302C2 (ru) 2012-03-20
CN101479217A (zh) 2009-07-08
CN101479217B (zh) 2013-02-06
EP2043979B1 (fr) 2015-04-29
US7722781B2 (en) 2010-05-25
EP2043979A1 (fr) 2009-04-08
JP5393453B2 (ja) 2014-01-22
ES2539938T3 (es) 2015-07-07
RU2009102509A (ru) 2010-08-10
EP2043979B2 (fr) 2025-02-26
JP2009542651A (ja) 2009-12-03

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